.alert-content{
    position: fixed;
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
    background: rgba(0,0,0,0.5) ;
    z-index: 20;
}
.alert-content-box{
    min-width: 400px;
    min-height: 150px;
    background: #fff;
    border-radius: 5px;
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
    margin: auto;
    z-index: 2222;
}
.alert-message{
    text-align: center ;
}